Product Description

Hydrotalcite DHT*4A(KYOWA)
Product Description
Application:
DHT*4Ais a synthetic Hydrotalcite-like compound and has recently been developed for use as a stabilizer(halogen scavenger) in plastic processes such as the production of polyolefins.  
DHT*4A is needed to produce polyolefins which have residual catalyst components.
DHT*4A is the most suitable halogen scavenger for transparent films of polyolefins because of its low level of water carry-over as well as its refractive index which is clase to that of polyolefins.
DHT*4A is indispensable in producing adhesive graft polymers in which calcium stearate can not be used due to bleed-out.
DHT*4A provides long term weatherability when used with HALS
 
Advantage:
 1. Quantities of additives are minimized.
DHT*4A has about 5 times the capacity of calcium stearate to protect against corrosivity. Any loss of the polymers physical properties resulting from additives is thereby reduced.
2. Polymer yellowing is avoided.
When DHT*4A contacts phenolic type stabilizers such as B.H.T., that are widely used as antioxidants, DHT*4A does not cause polymer yellowing.
3. No stearic acid vapor problem.
By using DHT*4A, troublesome stearic acid vapors can be eliminated.
4. Reduction of water carry-over.
The amount of water carry-over while using DHT*4A is noticably less than in the case of calcium stearate.
 
Product technical parameter:
Raw materials andcomponent：Magnesium hydroxide *5%***0%
CAS No.：*********9
EINECS No.：******3
 
Specifications: